CVE-2026-4859CWE-79

SP Blog Designer <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'design' Attribute

Medium · published May 12, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
23.8
In the wild
Unconfirmed
What it is

The SP Blog Designer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'design' attribute of the `wpsbd_post_carousel` shortcode in all versions up to, and including, 1.0.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00321 · 23.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-05-12T07:48Z
EPSS history
Timeline
  • 12 MAY 07:48Z
    SP Blog Designer <= 1.0.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'design' Attribute
    cvelistv5